hadoop-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Telles Nobrega <tellesnobr...@gmail.com>
Subject Re: Hadoop 2.6.0 Multi Node Setup
Date Tue, 27 Jan 2015 19:46:51 GMT
Thanks.

On Tue Jan 27 2015 at 15:59:35 Ahmed Ossama <ahmed@aossama.com> wrote:

>  Hi Telles,
>
> No, the documentation isn't out of date. Normally hadoop configuration
> files are placed under /etc/hadoop/conf, it then referenced to when
> starting the cluster with --config $HADOOP_CONF_DIR, this is how hdfs and
> yarn know their configuration.
>
> Second, it's not a good practice to run hadoop with root. What you want to
> do is something like this
>
> # useradd hdfs
> # useradd yarn
> # groupadd hadoop
> # usermod -a -Ghadoop hdfs
> # usermod -a -Ghadoop yarn
> # mkdir /hdfs/{nn,dn}
> # chown -R hdfs:hadoop /hdfs
>
> Then start your hdfs daemon with hdfs user, and yarn daemon with yarn user.
>
>
> On 01/27/2015 08:40 PM, Telles Nobrega wrote:
>
> Hi, I'm starting to deply Hadoop 2.6.0 multi node.
> My first question is:
> In the documenation page, it says that the configuration files are under
> conf/ but I found them in etc/. Should I move them to conf or is this just
> out of date information?
>
>  My second question is regarding users permission, I tried installing
> before but I was only able to start deamons running as root, is that how it
> should be?
>
>  For now these are all the question I have.
>
>  Thanks
>
>
> --
> Regards,
> Ahmed Ossama
>
>

Mime
View raw message